BCM5691
®
SCALABLE 12-PORT GIGABIT ETHERNET MULTILAYER SWITCH
FEATURES
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12 10/100/1000 Mbps Ethernet ports supporting both copper
and fiber connections
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Integrated high-performance SerDes
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Gigabit Ethernet SerDes per port
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4-pins per port SGMII interface to Gigabit Ethernet PHYs
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32 million packets/second (line rate) aggregate switching
capacity
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Supports 8 classes of service (CoS) per port
SUMMARY OF BENEFITS
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System vendors can build scalable high-performance, high
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port density Gigabit Ethernet LAN switches in several form
factors.
Multiple classes of service (CoS) and very low latency enable
the support of VoIP and other voice, video, and data
applications.
Built-in high-speed serial interfaces with Broadcom-unique
SerDes technology eases and accelerates system design, while
reducing cost and conserving board space.
Broadcom switch API compatability enables software reuse
and faster time-to-market
Small package and low power enables cost-effective and high-
performance system design
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Port trunking and mirroring supported across stacked
switches
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Fully integrated data and address memory on-chip
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Advanced packet flow control:
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Head of line blocking prevention
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Full-duplex flow control (802.3x compatible)
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ContentAware
TM
network processing per port
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Line rate multifield packet classification
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Supports IEEE802.1p, TOS/DiffServ, rate limiting, policing,
priority tagging, and remapping
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Support for jumbo Frames of up to 9 KB
TARGET APPLICATIONS
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Multilayer switch in modular Gigabit Ethernet switches
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High port count stand-alone or stackable Gigabit Ethernet
switches
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Chassis and in-server switch blade applications
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Advanced diagnostic features including IEEE1149.1 JTAG
boundary scan and BIST functionality
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Low power, enhanced thermal 480-pin EBGA package
SerDes/
SGMII
SerDes/
SGMII
SerDes/
SGMII
SerDes/
SGMII
SerDes/
SGMII
SerDes/
SGMII
PCI I
2
C
GPIC
FFP
GPIC
FFP
GPIC
FFP
GPIC
FFP
GPIC
FFP
GPIC
FFP
CMIC
L2
Table
L3
Table
MMU
VLAN
Table
GPIC
FFP
GPIC
FFP
GPIC
FFP
GPIC
FFP
GPIC
FFP
GPIC
FFP
IPMC
Table
CBP
SerDes/
SGMII
SerDes/
SGMII
SerDes/
SGMII
SerDes/
SGMII
SerDes/
SGMII
SerDes/
SGMII
12-Port Gigabit Ethernet Multilayer Switch